Northern Illinois defensive tackle Ken Bishop is scheduled to visit the Oakland Raiders on April 15, according to a league source.
Bishop works out for the Miami Dolphins on April 11.
Bishop is an All-Mid-American conference selection projected as a later-round draft pick.
Bishop had 59 tackles, 5.5 for losses last season, with an interception.
The 6-foot-1, 308-pounder has run the 40-yard dash in 4.96 seconds.
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Aaron Wilson covers the Ravens for The Baltimore Sun